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diff --git a/src/go/collectors/go.d.plugin/modules/systemdunits/integrations/systemd_units.md b/src/go/collectors/go.d.plugin/modules/systemdunits/integrations/systemd_units.md new file mode 100644 index 000000000..001cd87a3 --- /dev/null +++ b/src/go/collectors/go.d.plugin/modules/systemdunits/integrations/systemd_units.md @@ -0,0 +1,253 @@ +<!--startmeta +custom_edit_url: "https://github.com/netdata/netdata/edit/master/src/go/collectors/go.d.plugin/modules/systemdunits/README.md" +meta_yaml: "https://github.com/netdata/netdata/edit/master/src/go/collectors/go.d.plugin/modules/systemdunits/metadata.yaml" +sidebar_label: "Systemd Units" +learn_status: "Published" +learn_rel_path: "Collecting Metrics/Systemd" +most_popular: False +message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE" +endmeta--> + +# Systemd Units + + +<img src="https://netdata.cloud/img/systemd.svg" width="150"/> + + +Plugin: go.d.plugin +Module: systemdunits + +<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" /> + +## Overview + +This collector monitors Systemd units state. + + + + +This collector is supported on all platforms. + +This collector supports collecting metrics from multiple instances of this integration, including remote instances. + + +### Default Behavior + +#### Auto-Detection + +This integration doesn't support auto-detection. + +#### Limits + +The default configuration for this integration does not impose any limits on data collection. + +#### Performance Impact + +The default configuration for this integration is not expected to impose a significant performance impact on the system. + + +## Metrics + +Metrics grouped by *scope*. + +The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels. + + + +### Per unit + +These metrics refer to the systemd unit. + +Labels: + +| Label | Description | +|:-----------|:----------------| +| unit_name | systemd unit name | + +Metrics: + +| Metric | Dimensions | Unit | +|:------|:----------|:----| +| systemd.service_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.socket_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.target_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.path_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.device_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.mount_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.automount_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.swap_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.timer_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.scope_unit_state | active, inactive, activating, deactivating, failed | state | +| systemd.slice_unit_state | active, inactive, activating, deactivating, failed | state | + + + +## Alerts + + +The following alerts are available: + +| Alert name | On metric | Description | +|:------------|:----------|:------------| +| [ systemd_service_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.service_unit_state | systemd service unit in the failed state | +| [ systemd_socket_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.socket_unit_state | systemd socket unit in the failed state | +| [ systemd_target_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.target_unit_state | systemd target unit in the failed state | +| [ systemd_path_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.path_unit_state | systemd path unit in the failed state | +| [ systemd_device_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.device_unit_state | systemd device unit in the failed state | +| [ systemd_mount_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.mount_unit_state | systemd mount unit in the failed state | +| [ systemd_automount_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.automount_unit_state | systemd automount unit in the failed state | +| [ systemd_swap_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.swap_unit_state | systemd swap unit in the failed state | +| [ systemd_scope_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.scope_unit_state | systemd scope unit in the failed state | +| [ systemd_slice_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.slice_unit_state | systemd slice unit in the failed state | +| [ systemd_timer_unit_failed_state ](https://github.com/netdata/netdata/blob/master/src/health/health.d/systemdunits.conf) | systemd.timer_unit_state | systemd timer unit in the failed state | + + +## Setup + +### Prerequisites + +No action required. + +### Configuration + +#### File + +The configuration file name for this integration is `go.d/systemdunits.conf`. + + +You can edit the configuration file using the `edit-config` script from the +Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/netdata-agent/configuration.md#the-netdata-config-directory). + +```bash +cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata +sudo ./edit-config go.d/systemdunits.conf +``` +#### Options + +The following options can be defined globally: update_every, autodetection_retry. + + +<details><summary>Config options</summary> + +| Name | Description | Default | Required | +|:----|:-----------|:-------|:--------:| +| update_every | Data collection frequency. | 1 | no | +| autodetection_retry | Recheck interval in seconds. Zero means no recheck will be scheduled. | 0 | no | +| include | Systemd units filter. | *.service | no | +| timeout | System bus requests timeout. | 1 | no | + +##### include + +Systemd units matching the selector will be monitored. + +- Logic: (pattern1 OR pattern2) +- Pattern syntax: [shell file name pattern](https://golang.org/pkg/path/filepath/#Match) +- Syntax: + +```yaml +includes: + - pattern1 + - pattern2 +``` + + +</details> + +#### Examples + +##### Service units + +Collect state of all service type units. + +<details><summary>Config</summary> + +```yaml +jobs: + - name: service + include: + - '*.service' + +``` +</details> + +##### One specific unit + +Collect state of one specific unit. + +<details><summary>Config</summary> + +```yaml +jobs: + - name: my-specific-service + include: + - 'my-specific.service' + +``` +</details> + +##### All unit types + +Collect state of all units. + +<details><summary>Config</summary> + +```yaml +jobs: + - name: my-specific-service-unit + include: + - '*' + +``` +</details> + +##### Multi-instance + +> **Note**: When you define multiple jobs, their names must be unique. + +Collect state of all service and socket type units. + + +<details><summary>Config</summary> + +```yaml +jobs: + - name: service + include: + - '*.service' + + - name: socket + include: + - '*.socket' + +``` +</details> + + + +## Troubleshooting + +### Debug Mode + +To troubleshoot issues with the `systemdunits` collector, run the `go.d.plugin` with the debug option enabled. The output +should give you clues as to why the collector isn't working. + +- Navigate to the `plugins.d` directory, usually at `/usr/libexec/netdata/plugins.d/`. If that's not the case on + your system, open `netdata.conf` and look for the `plugins` setting under `[directories]`. + + ```bash + cd /usr/libexec/netdata/plugins.d/ + ``` + +- Switch to the `netdata` user. + + ```bash + sudo -u netdata -s + ``` + +- Run the `go.d.plugin` to debug the collector: + + ```bash + ./go.d.plugin -d -m systemdunits + ``` + + |